mag card
American
[mag]
/ mæg /
noun
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Computers. a plastic or paper card with a magnetizable layer on which data can be recorded and from which data can be read.
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such a card used in access-control systems, as for automatically unlocking doors.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
